Seattle Seahawks and safety Kam Chancellor agree to contract extension through 2017 season

Kam Chancellor and the Seattle Seahawks have agreed on a contract extension that will keep the young safety with the only team he's played for through the 2017 season.

Chancellor's agent, Alvin Keels, announced the deal on his Twitter account on Monday afternoon. Keels said it was a four-year extension. The team was expected to formally announce the deal later Monday.

Chancellor, who turned 25 earlier this month, has grown from being a fifth-round pick out of Virginia Tech in 2010 into the hard-hitting anchor in Seattle's talented secondary. In 2011, Chancellor was a Pro Bowl selection in his first season as a starter, when he had 73 tackles, four interceptions and 13 passes defensed. Last season, Chancellor was used even more in run support and recorded a career-high 92 tackles.